[gn build] Port 1a0e67d

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/lib/Support/BUILD.gn

@@ -74,6 +74,7 @@ static_library("Support") {
     "DebugCounter.cpp",
     "DeltaAlgorithm.cpp",
     "DivisionByConstantInfo.cpp",
+    "DynamicAPInt.cpp",
     "ELFAttributeParser.cpp",
     "ELFAttributes.cpp",
     "Error.cpp",
@@ -128,6 +129,7 @@ static_library("Support") {
     "ScaledNumber.cpp",
     "ScopedPrinter.cpp",
     "Signposts.cpp",
+    "SlowDynamicAPInt.cpp",
     "SmallPtrSet.cpp",
     "SmallVector.cpp",
     "SourceMgr.cpp",

llvm/utils/gn/secondary/llvm/unittests/ADT/BUILD.gn

@@ -33,6 +33,7 @@ unittest("ADTTests") {
     "DenseSetTest.cpp",
     "DepthFirstIteratorTest.cpp",
     "DirectedGraphTest.cpp",
+    "DynamicAPIntTest.cpp",
     "EditDistanceTest.cpp",
     "EnumeratedArrayTest.cpp",
     "EquivalenceClassesTest.cpp",